Algebra 2 Review Day 1 semester exam practice problems

Front

What is the slope-intercept form of a line?

Back

The slope-intercept form of a line is given by the equation y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine the slope from two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that as x increases, y decreases, meaning the line falls from left to right.

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis, represented by the value of y when x = 0.

Front

What is the absolute value function?

Back

The absolute value function is defined as f(x) = |x|, which outputs the non-negative value of x.

Front

How does reflecting a function over the x-axis affect its equation?

Back

Reflecting a function over the x-axis changes the sign of the output, resulting in f(x) becoming -f(x).

Front

What is a vertical stretch of a function?

Back

A vertical stretch occurs when the output of a function is multiplied by a factor greater than 1, making the graph taller.

Front

What does it mean to translate a function horizontally?

Back

Translating a function horizontally means shifting the graph left or right by adding or subtracting a value from the input variable x.

Front

What is the slope-intercept form of the line with a slope of -2 and a y-intercept of 7?

Back

The slope-intercept form is y = -2x + 7.

Front

Which equation is not in slope-intercept form?

Back

The equation 2y = x + 5 is not in slope-intercept form.